Improvement in grasn-separators



R; M. BECKER.

GRAIN-SEPARATOR.

No.181,303, Patented Aug. 22,1876,

UNITED SrA'r s PATENT OFFICE.

ROBERT M. scenes, or nrtwhuunn-wrscousrs, AssIeuon T0 HERMANN KURTH, or SAME PLACE.

IMPROVEM EIdT n GRAlN-S EPARATORS.

-, I Specification forming part s atesman no. te 1,soa.= dated August 22, 1876 application filed 2 y 7 January 17, 1876.

To all whom it may concern.-

Be it known that I, Bonner M. BECKER, of the city of Milwaukee, in the county of Mil waukee and State of \Visconsin, have invented certain new and useful Improvements in Cockle-Separators; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art 'to which it appertains to makeand use the same, reference being had to the accompanying drawings, and to the lettersof reference marked thereon, which form a part of this specification.

,This invention consists in a combination ofreciprocating, revolving, and endless-belt sieves, with automatic brushes and rollers for clearing the sieves from obstructions, so arranged as to separate cockle from wheat and other grains,'all as hereinafter more fully set forth.

In. the accompanying drawings, Figure 1 is a side elevation of a machine embodying my invention. Fig. 2 is an end view of the same.

Fig. his a sectional view, showing the corrugated surface of the cylindrical sleeve.

Referring to the parts by letters, A represents a revolving cylindrical sieve,formed of a single thickness of sheetmetal, and having indentations s on its internal surface, at the bottom of which'are perforations made of less diameter than the indentations, as shown in Fig. 3 of the drawings. B is an endless-belt sieve. G .is a common sieve, which is so inclined that the grain will rollLofl' one side. D D are automatic rollers, provided with rubber or other yielding surfaces, which have a reciprocating motion against the under surface of sieve O, and serve to clear it of obstructions. E is a brush attached to the cockle or catch belt U, and operates upon the inner surface of the cylindrical sieve A, to clear it of obstructions.' F F are endless belts, which receive their motion from-the pulley-wheels J J, running around the pulleys W W and G G, upon which, two belts the cylindrical sieve A rests and revolves. I is a hopper or receiver, into which the fine grain and cockle pass through the sieve O. The plump and more perfect grain rolls off the inclined surface of the sieve 0 into the conductor K. L and M are pulleys,

upon which the endless-belt sieve B moves. The pulleys L and M have an'elastic or yielding surface, of rubber or other suitable mate- .rial, which serves to clean the endless-belt sieve B as it moves over them. N Nare flanges surrounding the cylindrical sieve A, in which the endless belts F move. The cylindrical sieve A rests entirely upon the endless belts F, and is revolved by their movement'u'nder it. O is a .crank attached to the axle of the pulley L, upon which axle is a beveled gear, R, by which motion is transmitted to the pulley-wheels J J, thereby setting the endless belts F F in motion. The axle P of the pulleys J J extend to the opposite end of the machine, upon which axle there is a similar pulley and belt, which operate in a similar manner upon the cylindrical sieve A. U is a cookie-belt. Tare standards, on which is supported the guid'eor-snpport for the cockle-belt U, and extends the length of the cockle-belt from the pnlleyuvheel L to the pulley-wheel M. X is a spiral-wire spring attached to the supporter T. Y is a set-screw attach ed to the boxes of the axle of the pulley M, for the purpose of tightening the endless-belt sieve B. i V isa'partition extending lengthwise of the cylinder A, at the inner side of the catch-belt B, for preventing the material falling on the beltfrom escaping again into the cylinder A. Z is a plain metallic cylinder surrounding the cylindrical sieve A, which catches the grass and other fine seed that passes through the cylindrical sieve A. A are openings in the-lower end ofthe metallic cylinder Z, through which the grass and other fine seed escapes into the conductor B. G is the axle to the pulley-wheel L. D? is an eccentric wheel attached 'to the axle O. E is a crank attached to the eccentric wheel D and the rollers D D, and communicates to them a reciprocating motion. There may also be a similar crank attached to the end of the rollers D D at F, and connected'with the axle C with a similar. eccentric wheel.

The operation of tllexmachine is as follows: The grain is deposited uponthe inclined sieve O, wherethe first separation takes place, the large grain passing into-the conductor K, and

'is thereby conveyedto a receptacle for the cleaned grain. The smaller grain andcocklo pass through the sieve G into the hopper I, and are deposited upon the endless-belt sieve.

B, wherev the second separation takes place,

thelarg'est grain being carried over the pul-' ley L and deposited with that from the pulley K, and thefiner grain and cookie pass through the sieve B,-and are deposited upon the revolving cylindriealsieve A, where the third separation takes place, the best grain passing out at thelower end of the cylindrical sieve A, and the grass and other fine seeds pass through the small openingsS- in the-indentations of the cylinder A, as shown by Fig. 3, which represents a section of the corrugated surface of the cylindrical sieve A. The grain and cookie remaining in the indentations in the sieve A, the openings at the bottoms of which are too small to permit their escape, are carried up on its side until they come in contact llll with the cockleorcatch belt U,where the fourth and last separation takes place, the cookie or catch belt U causing the coarse grain to fall back out of the pockets, which are now tilted up, so as to permit it tofall back and pass to ward the lower part of the cylinder A, until it has reached the opening at its lower end,where it drops out with the other separated grain, while the cockle is carried beneath the coekle or catch beltU, and falls out upon the cocklebelt U,-whieh moves parallel with the endlessbelt sieve B, and is by itthrown oh", and the separation completed. The stationary-partition V prevents the eockle from mixing with the grain as it'fa-lls from the revolving cylinder A upon the cookie-belt U.'

Having thus described the operation of my machine,'what I claim as new, and desire to secure by Letters Patent, is

I. The cylindrical sieve A, formed of a' single thickness of metal, and having indentations 8, with perforations at the bottom of less diameter than the indentations, substantially.

as and for the purpose specified.

, 2. The sieve 0, arranged to operate in combination with the rollers D, having a surface of rubber or other yielding material, and having a reciprocating motion, substantially asbination with the belt U and cylindrical sieve Y A, dsubstantially asand for, the purpose specifie Y 6. The pulleys L M, having rubber or other yielding surfaces,.as described, and arranged to operate in combination with the endlessbelt sieve B, substantially as and for the pur-- pose specified.

7. The pulleys W, J, and G and endlessbelts F, arranged to operate in combination with the cylindrical sieve A, having the lianges N,

substantially as and for the purpose specified; In testimony'that I claim the foregoing as my own I afiix my signature in presence of two witnesses.

ROBERT M BECKER.

Witnesses: Z v

' JAS. B. ERWIN,

K. SHAWVAN. 

